Finding the Fourth Proportional to 76,828.16, 115,232.52 and 30,113.84
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Solution
The fourth proportional to 76,828.16, 115,232.52 and 30,113.84 is: 45,166.95
Step by Step Solution
- Step 1: Write the proportion equation
76,828.16 : 115,232.52 = 30,113.84 : x - Step 2: Convert to fraction form
76,828.16/115,232.52 = 30,113.84/x - Step 3: Cross multiply
76,828.16x = 115,232.52 × 30,113.84 - Step 4: Simplify right side
76,828.16x = 3,470,093,670.08 - Step 5: Solve for x
x = 3,470,093,670.08/76,828.16 - Step 6: Final answer
x = 45,166.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.